21302030100223 has 2 divisors, whose sum is σ = 21302030100224. Its totient is φ = 21302030100222.

The previous prime is 21302030100209. The next prime is 21302030100341. The reversal of 21302030100223 is 32200103020312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21302030100223 - 2³³ = 21293440165631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21302030100223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302030101223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651015050111 + 10651015050112.

It is an arithmetic number, because the mean of its divisors is an integer number (10651015050112).

Almost surely, 2^{21302030100223} is an apocalyptic number.

21302030100223 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302030100223 is an equidigital number, since it uses as much as digits as its factorization.

21302030100223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21302030100223 its reverse (32200103020312), we get a palindrome (53502133120535).

The spelling of 21302030100223 in words is "twenty-one trillion, three hundred two billion, thirty million, one hundred thousand, two hundred twenty-three".